NEWSPAPER 78

PHYSICAL REVIEW LETTERS Contents

VOLUME 78, NUMBER 16 21 April 1997

General Physics Three-Particle Entanglements from Two Entangled Pairs ...... 3031 Anton Zeilinger, Michael A. Horne, Harald Weinfurter, and Marek Zukowski˙ Barrier Tunneling and Reflection in the Time and Energy Domains: The Battle of the Exponentials ...... 3035 N. T. Maitra and E. J. Heller Steady State and Dynamics of Driven Diffusive Systems with Quenched Disorder ...... 3039 Goutam Tripathy and Mustansir Barma

Gravitation and Astrophysics Indication of Anisotropy in Electromagnetic Propagation over Cosmological Distances ...... 3043 Borge Nodland and John P. Ralston Preliminary Results of a Determination of the Newtonian Constant of Gravitation: A Test of the Kuroda Hypothesis 3047 Charles H. Bagley and Gabriel G. Luther General Relativity in Terms of Dirac Eigenvalues ...... 3051 Giovanni Landi and Carlo Rovelli

Elementary Particles and Fields CODEN: PRLTAO 78 (16), 3031–3227 (21 April 1997) New Signature for Gauge Mediated Supersymmetry Breaking ...... 3055 D. A. Dicus, B. Dutta, and S. Nandi Calculation of Hadron Form Factors from Euclidean Dyson-Schwinger Equations ...... 3059 M. Burkardt, M. R. Frank, and K. L. Mitchell Wide Scalar Neutrino Resonance and bb Production at the CERN Collider LEP ...... 3063 Jens Erler, Jonathan L. Feng, and Nir Polonsky

Nuclear Physics Observation of Kaonic Hydrogen Ka X Rays ...... 3067 M. Iwasaki, R. S. Hayano, T. M. Ito, S. N. Nakamura, T. P. Terada, D. R. Gill, L. Lee, A. Olin, M. Salomon, S. Yen, K. Bartlett, G. A. Beer, G. Mason, G. Trayling, H. Outa, T. Taniguchi, Y. Yamashita, and R. Seki Inelasticity Distributions in High-Energy p-Nucleus Collisions ...... 3070 Yogiro Hama and Samya Paiva Entrance Channel Dependent Light Charged Particle Emission from the 156Er Compound Nucleus ...... 3074 J. F. Liang, J. D. Bierman, M. P. Kelly, A. A. Sonzogni, R. Vandenbosch, and J. P. S. van Schagen

Atomic, Molecular, and Optical Physics Interpretation of Higher Order Magnetic effects in the Spectra of Transition Metal Ions in Terms of SO(5) and Sp(10) 3078 J. E. Hansen, B. R. Judd, A. J. J. Raassen, and P. H. M. Uylings Dramatic Changes in the 3s Autoionization Process at the Beginning of the Ar I Sequence ...... 3082 P. van Kampen, G. O’Sullivan, V. K. Ivanov, A. N. Ipatov, J. T. Costello, and E. T. Kennedy Jaynes-Cummings Model for a Trapped Ion in Any Position of a Standing Wave ...... 3086 Ying Wu and Xiaoxue Yang 16

(Continued on Third Cover) Contents (Continued)

1 Vibrational State Distribution of Na2 Ions Created in Ultracold Collisions ...... 3089 J. J. Blangé, J. M. Zijlstra, A. Amelink, X. Urbain, H. Rudolph, P. van der Straten, H. C. W. Beijerinck, and H. G. M. Heideman Magnetic Field Control of the NO2 Photodissociation Threshold ...... 3093 R. Jost, J. Nygård, A. Pasinski, and A. Delon Time-dependent Density Functional Results for the Dynamic Hyperpolarizability of C60 ...... 3097 S. J. A. van Gisbergen, J. G. Snijders, and E. J. Baerends

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, Etc. Stochastic Resonance in Chaotic Spin-Wave Dynamics ...... 3101 Ekkehard Reibold, Wolfram Just, Jens Becker, and Hartmut Benner, Sub-Shot-Noise laser Doppler Anemometry with Amplitude-Squeezed Light ...... 3105 Yong-qing Li, Peter Lynam, Min Xiao, and Paul J. Edwards

Plasma and Beam Physics Measuring the Resonance Structure of Accelerator Impedance with Single Bunches ...... 3109 T. Bohl, T. P. R. Linnecar, and E. Shaposhnikova Structure of Confined Yukawa System (Dusty Plasma) ...... 3113 Hiroo Totsuji, Tokunari Kishimoto, and Chieko Totsuji Identification of Y-Shaped and O-Shaped Diffusion Regions During Magnetic Reconnection in a Laboratory Plasma . . . 3117 Masaaki Yamada, Hantao Ji, Scott Hsu, Troy Carter, Russell Kulsrud, Yasushi Ono, and Francis Perkins High Intensity Laser Absorption by Gases of Atomic Clusters ...... 3121 T. Ditmire, R. A. Smith, J. W. G. Tisch, and M. H. R. Hutchinson Electron Acceleration by a Laser Wakefield in a Relativistically Self-Guided Channel ...... 3125 R. Wagner, S.-Y. Chen, A. Maksimchuk, and D. Umstadter Experimental Evidence for Zigzag Instability of Solitary Stripes in a Gas Discharge System ...... 3129 Yu. A. Astrov, E. Ammelt, and H.-G. Purwins

Condensed Matter: Structure, Etc. Study of Interfacial Point Defects by Ballistic Electron Emission Microscopy ...... 3133 T. Meyer and H. von Känel Anomalous Dislocation Kink Drift in Germanium ...... 3137 Yu. L. Iunin, V. I. Nikitenko, V. I. Orlov, and B. V. Petukhov Structural Instability in Ice VIII under Pressure ...... 3141 J. M. Besson, S. Klotz, G. Hamel, W. G. Marshall, R. J. Nelmes, and J. S. Loveday Exact Scaling Law for the Fragmentation of Percolation Clusters: Numerical Evidence ...... 3145 Jean-Marc Debierre Instabilities and Disorder of the Domain Patterns in Systems with Competing Interactions ...... 3149 C. B. Muratov Can Liquid Metal Surfaces Have Hexatic Order? ...... 3153 Franck Celestini, Furio Ercolessi, and Erio Tosatti Bending Energy of Amphiphilic Films at the Nanometer Scale ...... 3157 C. Gourier, J. Daillant, A. Braslau, M. Alba, K. Quinn, D. Luzet, C. Blot, D. Chatenay, G. Grübel, J.-F. Legrand, and G. Vignaud

Condensed Matter: Electronic Properties, Etc. Electronic Structure of Amorphous Silicon Nanoclusters ...... 3161 G. Allan, C. Delerue, and M. Lannoo HgSe: Metal or Semiconductor? ...... 3165 K.-U. Gawlik, L. Kipp, M. Skibowski, N. Orłowski, and R. Manzke Giant Mesoscopic Fluctuations of Quantum Dot Conductance Caused by Strong Electromagnetic Irradiation ...... 3169 L. Y. Gorelik, Frank A. Maaø, R. I. Shekhter, and M. Jonson

(Continued on Preceding Page) Contents (Continued)

3D XY and Lowest Landau Level Fluctuations in Deoxygenated YBa2Cu3O72d Thin Films ...... 3173 Katerina Moloni, Mark Friesen, Shi Li, Victor Souw, P. Metcalf, Lifang Hou, and M. McElfresh Effects of Columnar Defects on the Josephson Plasma Resonance in Bi2Sr2CaCu2Oy ...... 3177 Tetsuo Hanaguri, Yoshishige Tsuchiya, Song Sakamoto, Atsutaka Maeda, and David G. Steel Superfast Vortex Creep in YBa2Cu3O72d Crystals with Columnar Defects: Evidence for Variable-Range Vortex Hopping ...... 3181 J. R. Thompson, L. Krusin-Elbaum, L. Civale, G. Blatter, and C. Feild Small Angle Neutron Scattering Studies of the Vortex Lattice in the UPt 3 Mixed State: Direct Structural Evidence for the B ! C Transition ...... 3185 U. Yaron, P. L. Gammel, G. S. Boebinger, G. Aeppli, P. Schiffer, E. Bucher, D. J. Bishop, C. Broholm, and K. Mortensen Theory of Neutron Diffraction from the Vortex Lattice in UPt 3 ...... 3189 Robert Joynt Green Function of the Sutherland Model with SU(2) Internal Symmetry ...... 3193 Yusuke Kato Antiferromagnetic Short Range Order in a Two-Dimensional Manganite Exhibiting Giant Magnetoresistance ...... 3197 T. G. Perring, G. Aeppli, Y. Moritomo, and Y. Tokura Low-Temperature Specific Heat of La12xSrxMnO31d ...... 3201 B. F. Woodfield, M. L. Wilson, and J. M. Byers Coherent vs Incoherent Emission from Semiconductor Structures after Resonant Femtosecond Excitation ...... 3205 Massimo Gurioli, Franco Bogani, Simone Ceccherini, and Marcello Colocci Electron Emission from Solids Bombarded by Slow Neutrals ...... 3209 Zdenek Sroubekˇ Trapping of Ions at Metal Surfaces ...... 3213 D. M. Goodstein, E. B. Dahl, C. A. DiRubio, and B. H. Cooper

Cross-Disciplinary Physics Capacities of Quantum Erasure Channels ...... 3217 Charles H. Bennett, David P. DiVincenzo, and John A. Smolin Quantum State Transfer and Entanglement Distribution among Distant Nodes in a Quantum Network ...... 3221 J. I. Cirac, P. Zoller, H. J. Kimble, and H. Mabuchi

Comments Comment on “Directed Beam of Excitons Produced by Stimulated Scattering” ...... 3225 S. G. Tikhodeev Mysyrowicz, Benson, and Fortin Reply ...... 3226 A. Mysyrowicz, E. Benson, and E. Fortin

Errata Optical Solitons in Presence of Kerr Dispersion and Self-Frequency Shift [Phys. Rev. Lett. 76, 3955 (1996)] ...... 3227 K. Porsezian and K. Nakkeeran